Maintenance of Intestinal Epithelium Structural Integrity and Mucosal Leukocytes During Chemotherapy by Oral Administration of Muramyl Tripeptide Phosphatidylethanolamine

The systemic administration of doxorubicin (DXR) decreases the number of epithelial cells and leukocytes in the small intestine of mice. Oral administration of muramyl tripeptide phosphatidylethanolamine (MTP-PE) prevented both disruption of intestinal architecture, and a decrease in the number of macrophages, and it induced the expression of IL-6, G-CSF, GM-CSF, and TNF-γ: in the intestinal tissue. The data suggest that the oral administration of MTP-PE can prevent chemotherapy-induced toxicity to the intestinal mucosa and hence infections due to translocation of aerobic bacteria from the intestine to the blood.